Pile wire



Jan. 1, 1929. V 1,697,154

G. WEINMAN, JR I I PILE WIRE Filed April 13, 1926 19' 5&4

J6 if 17- Patented Jan. 1, 1929.

UNITED STATES 1,697,154 PATENT OFFICE.

GEORGE WEINMAN, JR, or AinNeroN, PENNSYLVANIA, AssIGNonTo KiiNsINe'roN MACHINE worms, or PHILADELPHIA, PENNSYLVANIA, A CORPORATION or PENN- SYLVANIA.

.ZPILE Application filed April 13, 1926. Serial No. 101,626.

ing the flattened portion before folding offset in two directions from the axis of the wire, in order that the pocket made by longitudinal folding may be axially in line with the pile wire.

A further purpose is to form' a pocket on the end of a pile wire integral with the wire at one side but not at the other.

Further purposes will appear in the specification and in the claims.

I have preferred to illustrate my invention by one form only, selecting a form which has proved to be practical, reliable and inexpensive and which at the same time well illustrates the principles of my invention.

Figures 1 and 2 are broken side and end elevations respectively of a pile wire before it has been flattened.

Figures 3 and 4: are corresponding views of the same wire after flattening.

Figures 5 and 6 show corresponding views after the edgewise-project-ing flattened portion has been folded through ninety degrees.

Figures 7 and 8 are corresponding views after the flattened portion has been folded through one hundred and eighty degrees, one side being trimmed.

Figures 9, 10 and 11 are respectively bottom-plan, and side and end elevations of the completed pocket with knife inserted.

Figure 12 is a section taken upon line -end, even when joined by dependently of the height, cutting shape or direction of the blade which is to be included.

In carrying out my invention I start'with a plain straight-pile wire 15 and flatten its end by swaging longitudinally and laterally asat 16 axiallyoffsetting the flat in two directions fromthe original wire, as seen by the arrows in Figures 3 and 4,in. the direction of one edge of the wire and upon one side of the thickness of the wire, respectively. The portion 17 is trimmed off to form one of the edges 18 of the ultimate pocket.

Theoflset portion 19 is reversely turned (longitudinally folded) as shown in Figures 7 and 8 and any portion such as 20 now beyond the side limit of the intended pocket is trimmed 0E. One side 22 of the pocket is therefore now continuous about the perimeter wit-h the other side 21 but unlike it, is not continuous lengthwise with the unswaged adjoining portion of the wire.

I now define the pocket longitudinally by filling in the ends at 23 and 24 respectively with solder or other flowed metal or an insert 25 which latter may be held to place by spot Weld or rivet 26.

The folded end is preferably cut away and the two points, which are fastened together, are bent laterally as seen in Figures 9 11, both to stiffen the pocket and to prevent the end from injuring the reed.

The front and rear of the pocket are shaped at 27, 28, the one to fit the blade and the other to permit the blade to swing into position.

Because one side of the pocket is integral with the remainder of the pile wire my pocket in its entirety has a rigidity with the remainder of the wire difficult to obtain where the pocket is not integral. On the other hand the fact that one side of the pocket only is integrally connected at the solder, give the transverse walls of the pocket with respect to each other slightly more resilience than would be the case if the ends of both side walls were so integrally connected.

Moreover the fact that one side wall is forged up toward the other, as distinguished from a cut pocket, makes it possible for me to give a taper to the pocket making its walls closer at the-opening than at the bottom of the pocket so that any predetermined proportion of the pinch of the side walls of the pocket upon the edge of the blade takes place at the outer edge of the pocket close to the line of cutting contact, reducing the tilting leverage of the cutting strain and making it possible to get more pressure or to hold the knife in with less pressure from the side walls of the pocket than in forms lacking this advantage.

Whatever the form of filling between the side walls of the pocket to define its longitudinal extent the filling material may be tapered to make it thicker toward the bottom of the pocket and a fitting for this tapered section may be used to fill the opening during the closing movement of the pocket sides, being subsequently withdrawn lengthwise through the (still) open end. i

It will be evident that in view of my disclosure others will .see variations from the type and form shown by which a part or all of the benefit of my invention may be secured without copying mine, and I therefore purpose including herein all such modifications and changes as come within the reasonable spirit and scope of my claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is r 1. A pile wire, having a pocket at the end thereof continuous therewith along one side of the pocket, the other side being connected with the first along the closed bottom of the pocket but discontinuous with the body of the wire otherwise and means filling and tying together opposite sides of the pocket.

2. A pile wire having a knife pocket of which one side of the pocket is continuous with and offset from the body of the wire and the other side is longitudinally discontinuous from the body but is connected along its edge with the edge of the first side, the sides being converged toward the opening and filling material at the front'and back of the opening between the sides, that at the forward end being undercut to provide anchorage for the knife.

GEORGE WEINMAN, J R. 

